Western Alliance Bancorporation
MX ˙ BMV ˙ US9576381092
SecurityMX:WAL / Western Alliance Bancorporation
InstitutionTwo Sigma Advisers, Lp
Latest Disclosed Ownership161,200 shares
Latest Disclosed Value $ 13,552,084
Two Sigma Advisers, Lp reports 442.78% increase in ownership of WAL / Western Alliance Bancorporation

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 161,200 shares of Western Alliance Bancorporation (MX:WAL) valued at $13,552,084 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 29,699 shares of Western Alliance Bancorporation. This represents a change in shares of 442.78% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-17 2025-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 161,200 131,501 442.78 13,552 426.29 0.0263
2025-11-14 2025-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 29,699 10,499 54.68 2,575 72.01 0.0052
2025-08-14 2025-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 19,200 15,400 405.26 1,497 414.43 0.0031
2025-05-15 2025-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 3,800 -12,600 -76.83 292 -78.76 0.0007
2025-02-14 2024-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 16,400 0 0.00 1,370 -3.39 0.0032
2024-11-14 2024-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 16,400 -131,900 -88.94 1,418 -84.78 0.0033
2024-08-14 2024-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 148,300 70,500 90.62 9,316 86.58 0.0208
2024-05-15 2024-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 77,800 77,800 4,994 0.0116
2023-11-14 2023-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -169,400 -100.00 0 -100.00
2023-08-14 2023-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 169,400 169,400 6,178 0.0157
2021-05-17 2021-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -9,600 -100.00 0 -100.00
2021-02-16 2020-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 9,600 -60,659 -86.34 576 -74.08 0.0015
2020-11-16 2020-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 70,259 -104,488 -59.79 2,222 -66.42 0.0063
2020-09-15 2020-06-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 174,747 -115,300 -39.75 6,618 -25.46 0.0194
2020-08-14 2020-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 174,747 -115,300 6,618 19,123.8221
2020-05-15 2020-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 290,047 -316,081 -52.15 8,878 -74.30 0.0340
2020-02-14 2019-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 606,128 -151,600 -20.01 34,549 -1.05 0.0802
2019-11-14 2019-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 757,728 -74,200 -8.92 34,916 -6.15 0.0855
2019-08-14 2019-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 831,928 16,000 1.96 37,204 11.10 0.0926
2019-05-15 2019-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 815,928 192,600 30.90 33,486 36.04 0.0844
2019-02-14 2018-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 623,328 202,816 48.23 24,615 2.89 0.0672
2018-11-14 2018-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 420,512 376,000 844.72 23,923 849.33 0.0584
2018-08-14 2018-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 44,512 -19,400 -30.35 2,520 -32.15 0.0068
2018-05-15 2018-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 63,912 -38,200 -37.41 3,714 -35.77 0.0101
2018-02-14 2017-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 102,112 -112,300 -52.38 5,782 -49.20 0.0156
2017-11-14 2017-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 214,412 109,281 103.95 11,381 120.05 0.0323
2017-08-14 2017-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 105,131 -4,500 -4.10 5,172 -3.90 0.0171
2017-05-15 2017-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 109,631 -8,100 -6.88 5,382 -6.16 0.0176
2017-02-14 2016-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 117,731 -118,681 -50.20 5,735 -35.38 0.0219
2016-11-14 2016-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 236,412 44,038 22.89 8,875 41.30 0.0378
2016-08-15 2016-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 192,374 76,500 66.02 6,281 62.38 0.0319
2016-05-16 2016-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 115,874 57,943 100.02 3,868 86.23 0.0216
2016-02-16 2015-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 57,931 -105,543 -64.56 2,077 -58.63 0.0124
2015-11-16 2015-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 163,474 28,755 21.34 5,020 10.38 0.0317
2016-02-09 2015-06-30 13F/A-1 WESTERN ALLIANCE BANCORP COMMON STOCK 957638109 134,719 8,700 6.90 4,548 21.77 0.0350
2015-08-14 2015-06-30 13F WESTERN ALLIANCE BANCORP COMMON STOCK 957638109 136,419 4,579
2016-02-09 2015-03-31 13F/A-1 WESTERN ALLIANCE BANCORP COMMON STOCK 957638109 126,019 46,400 58.28 3,735 68.78 0.0287
2015-05-15 2015-03-31 13F WESTERN ALLIANCE BANCORP COMMON STOCK 957638109 115,719 3,426
2016-02-09 2014-12-31 13F/A-1 WESTERN ALLIANCE BANCORP COMMON STOCK 957638109 79,619 79,619 546.31 2,213 655.29 0.0177
2015-02-17 2014-12-31 13F WESTERN ALLIANCE BANCORP COMMON STOCK 957638109 80,319 2,225
2014-11-14 2014-09-30 13F WESTERN ALLIANCE BANCORP Common Stock 957638109 0 -12,319 -100.00 0 -100.00
2016-02-09 2014-06-30 13F/A-1 WESTERN ALLIANCE BANCORP Common Stock 957638109 12,319 -5,000 -28.87 293 -31.06 0.0024
2014-08-14 2014-06-30 13F WESTERN ALLIANCE BANCORP Common Stock 957638109 12,319 294
2014-05-15 2014-03-31 13F Western Alliance Bancorp Common Stock 957638109 17,319 -15,700 -47.55 425 -45.93 0.0039
2014-02-14 2013-12-31 13F Western Alliance Bancorp Common Stock 957638109 33,019 -47,200 -58.84 786 -48.22 0.0076
2013-11-14 2013-09-30 13F Western Alliance Bancorp Common Stock 957638109 80,219 20,550 34.44 1,518 60.47 0.0181
2013-08-14 2013-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 59,669 59,669 946 0.0135
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.